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18-03-2018
Mathematics

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Calculate the arithmetic progression of the first member.

Calculate the arithmetic progression of the first member class=

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Аноним Аноним

18-03-2018

a15 = a1 + 24d = 23
So:-
a1 - 24*-3 = 23
a1 = 23 + 72

a1 = 95 answer

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